The mystic whose incorrupt corpse still attracts the faithful.

The yawning maw of this pagan visage is said to bite off the hands of liars.

St. Francesca Romana, patron saint of drivers, resides in the church she founded.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

The martyr's wax-enhanced skeletal remains lie preserved in a glass case in the Santa Maria della Vittoria in Rome.

Installed in an act of one-upsmanship, the annual sundial in this church is also a symbolic victory for the Gregorian calendar.

In the world's oldest university is a stunning 17th century anatomical theater carved from spruce.

The ancient tomb acts as a calendar that keeps perfect time.

A popular shrine where the Blessed Virgin allegedly appeared in 1830, displaying a holy armchair and two incorruptible remains of Lady Saints.

Saintly bones pressed into a wax effigy of a Catholic superstar.

This museum houses an imposing skeleton army comprised of creatures great and small.

Paris' fabled purveyor of exotic taxidermy and natural history curios.

A moving memorial to the fallen and missing from WWI trenches.

Each time a baby is born in Ghent, these streetlights flash in silent celebration.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This ghost town in Belgium will lose its street art when it ceases to exist.

Theme park featuring miniature replicas of European monuments.

Monasteries on rock pillars, once accessible only by frayed ropes.

An open-air sewer system that was covered piece-by-piece over 300 years.

Frida Kahlo's childhood home, now a museum of her life and works.

A curious collection dedicated to human and animal anatomy and pathology.

Gods clash with machines in a power plant regenerated as a museum.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

The final resting place of the poets Shelley and Keats.